Broom-clamping machine.



N. H. BEEBE.

BROOM CLAMPING MACHINE.

APPLICATmN HLED FEB. 26, 1915.

Patented Jam. 8, i918.

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N. H. BEEBE. BRooM CLAMPING MACHINE.

APPLICATION FILED FEB. 26.1915. 315,952,992.

Patented' Jan. 8, 1918.

4 SHEETS-SHEET 2- @Vi/knew@ N. H. BEEBE.

BROOIYI CLAMPING MACHINE.

APPLICATION FILED FEB. 26, 1915.

4 SHEETS-SHEET 3.

Patented Jan. 8,1918.

@foibe/wonen Patented Jan. 8,1918.

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N. H. BEEBE.

AMPING MACHINE.

oN man rmze. 1915.

BROOIVI CL APPLICATI www@ lil@

@Narnia FFFCE.

NORMAN H. BEEBE, OF DAVENOBT, IG'WA, ASSIGNOR TG LEE BRGM 65 DUSTEB.-

A CORPOBATN OF IGWA.

IBROOltl-CLAMPING- MACHINE.

Application tiled February 26. 1915.

T all aiom may Concern Fie it known that I, NORMAN H. Brunn, a citizen of the United States, residing at Davenport, in the county ot Scott and State of Iowa, have invented certain new and useful Improvements in Broom-Clamping Machines, of which the following is a speciii cation.

My invention relates to an improvement in broom clamping machines, and more pai ticularly to that class of machines used to tasten the clamps orjaws ot metal clamp brooms. rFhis machine compresses the iber, locks the clamping members together at the broom corners, and attaches the handle to the clamps by forming a ring about their centrally extended, annularly grooved portions.

In the accompanying drawings Figure 1 is a front elevation of clamping portion of the machine, showing the various parts in the position they7 occupy when ready to begin the clamping operation;

Fig. 2 is a front elevation of the mechanism shown in Fig. 1, with the parts in the position they occupy while clamping a broom;

Fig. 3 is a side view ot Fig. 1;

Fig. il shows in perspective the bell-crank used to operate the lip-straightener;

Fig. 5 is a view in perspective et one of the oscillating clamping fingers and `fingerblocks;

Fig. G shows in perspective, fragments ot the main frame, lower pressure-head, clamp forms, ring-anvil, and the complete tingerblock;

Fig. 7 is a fragmentary view of a pair of broom clamps; and

Figs. 8 and 9 are horizontal sections taken through the upper and lower mechanism respectirely.

Fig. 10, is a skeleton perspective view of the cams, heads, plungers, and operating connections therebetween.

Fig. 11, is a transverse vertical section through the heads and plungers and associating mechanism.

Number 1 is the main trame. Numbers 2, 3, 4 and 5 are V-guides attached to the face or front of main frame 1, b v bolts. some of which are shown by numbers (i. 7, S and 9.

The upper erosshead 10 is slidably held between the guidesQ and 3.

@The lever awsshail .1.1 is .Sldabbf held Specification of Letters Patent.

Patented dan. 8, time..

Serial No. 10,758.

between the guides 4 and A clamp torm l2 is att-ached to the lower end of crosshead 10. A. sfmilar form 13 is attached to the lower pressure-head 11i. The lower pressure-head lll is clamped to the iront et main trame 1, by bolts 15 and 16. rFliese bolts pass through slotted holes 15 and 1G respectively, as shown, thus allowing vertical adjustment oi" pressure-head lll. The lower end of head rests on a wedge-block 17, also shown in dotted lines, Fig. 3. The wedge-block 17 rests on the shelf 18, which shelt is a part oi trame 1. rlhe block 17 is held in place by bolts 19 and 20.

The anvil :21 upon which the ring rests is attached to torni` 13 and head 1% by bolts :2/J and 23. These bolts pass through aslot 23 in the anvil, so that the anvil may be adjusted. rEhe anvil rests on a projection 25 of the head 1st and secured to the lower portion of the anvil are two spring-staple holders 2dr-Q4. Finger-blocks 26 and 27 are located at either side of head 14e. These blocks are provided with a round extension QS, Fig. 6. rlhe extension, as will be seen, is reduced in size and threaded to receive a nut on its outer end. The blocks are provided with slots 2G', through which the bolts 29 and 3() pass. These bolts are screwed into the main frame 1.

The pressure-head 14. is provided with a. "islot 31, Fig. 6. rThe head not shown ot the bolt is inserted in slot 31. This bolt passes through a hole in block Q6, thus providing means ot clamping the block against the head 14C. It will be noten this block is adjustably attached to the main trame with means provided for clamping to head 1%-, so that the head and block may be adjusted in unison, or independently.

rEhe oscillating `fingers 33 and 34; pivot about the extensions :28. The bell cranks 35 and 36 are pivoted at 35 and 3G respectively within the fingers 33 and 34. Clamp end straighteners 37 and 33 are pivotally secured within the slotted. extensions 39 and 40 of the upper crosshead 10. The straighteners are provided with adjusting screws 41 and 42. These screws pass through holes in the spring clips 43 and 1li. Coil springs 45 and 4G are attached to clips 43 and it respectively at one of their ends, and to the head 10 at their opposite ends. These springs serve to hold the adj Listing screws 41 au enema o@ ,had .10..

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Plungers 47 and 48 are adjustably attached to lower sliding head ll, by the bolts 49, 50, 5l and lhe upper ends of the plungers are provided with rollers 53 and 5l. These rollers are in Contact with the lingers 33 and 34.

'l he p'ungers are so formed as to provide a shelf, into which are screwed the plunger screws 55 and 5G. These screws come in contact with the bell cranks 35 and 36, during the clenching operation, see Fig. 2.

For the purpose of forming the staple 57 (as shown in Fig. l) into the ring :3S (as shown in Fig. 7) the plunger 59 is employed. This plunger slides in a groove in the head l0. rl`he adjustable plate G0 is attached to head 10 by means ot the screws G1, 62, (32 and Gel. This plate holds the plunger 59 in the groove, and at its lower end lits about the neck or central curved portion of the clamp. the plate GO is adjustable, and will resist a heavy st 1ain without slipping. During the compressing and clenching operations, the

' rollers 67 and 68, carried by the upper crosshead 10, assist the rollers 58 and 5i in hoiting the fingers 33 and 84 in place against the side pressure of the fiber, see Fig. 2.

The rod G9 is adjustable for length, and serves to assist the head 14 in resisting the pressure.

Numbers and 71 are the broom clamps, see Fig. 7.

The movement of the lower head l1 is effected by a cam Sl mounted upon the cam shat't 82. This cam is adapted to actuate parallel beams 83, the inner ends ot which are connected to the main frame while the outer free ends are connected by a tie rod 84E to an oscillating arm 85 aflixed to a rock arm 8G suitably journaled in the main frame. Secured to the outer free end of the rock shaft SG is a roclr arm or tappet S7 which is adapted to impart a reciprocating movement to the lower head 11 through the medium ot the roller 88. The movement of the upper head 10 and plunger 59 are controlled by cams 89 and 90 respectively which are also mounted on the cam shaft 82.

lThe operations of the machine are as follows :*The staple is first placed in the semiannular groove in anvil 21 with its two ends extending upward in the notches 7G of the staple-holder Q4, see Figs. l and G. A clamp 71 is now placed in the form 13. The clamp 70 is then placed in form l2. The operator places a quantity of fiber over `the lower clamp, as shown in Fig. 8. The handle 72 is inserted between the bers, with the annular' groove 77 of the handle 72 in line with the annular beads 78 of the clamps. The head 1l moves upward just far enough to cause the rollers 53 and 54 to raise the fingers to the vertical posi-tion, shown in Fig. 2. Head l1 now remains stationary and By means of the screws 65 and 66` head 10 descends from the position shown in Fig. l to that shown in Fig. Q. ln this position the hook ends 79 and 8O of the clamps just pass each other. Head l0 now remains stationary and head l1 moves upward. The screws 55 and 56 come in contact with bell cranks 35 and 36, imparting motion to them. These bell-cranlrs in turn impart motion to the straighteners 37 and 38. The straighteners force the clamp-ends to a straight line, as shown in Fig. 7.

During the time ot the latter operations, the plunger 59 has descended, curving the staple into the form of a ring 5S, in the beads 78 ot the clamps, see Fig. 7. Just as the hook ends 79 and SVO of the clamps are brought to a straight line, the head l0 rises. The pressure ot the fiber forces the clamps apart, `thus causing the hook ends 79 and 80 to hook into each other, as shown in Fig. 7.

The lower head now descends, and the machine is ready to repeat its cycle of operations.

I claim zl. A broom-clamping machine comprising movable upper and lower cross-heads, a clamp-form carried by one of said crossheads, a stationary clamp-form, said clamp Jforms adapted to receive clamps therebetween, said clamps having hook ends and having centrally-extended annula rlygrooved or beaded portions, means carried by the upper cross-head and stationary clamp-form tor automatically forcing said hook ends into the path of each other when pressure is applied by the lower cross-head to bring the clamps together around the ibers of the broom, said hook ends hooking tcgether or interlocking asa result of the expansive .outward pressure ot' the fibers when the external pressure upon the clamps is removed, and means for bending a staple into the form of a ring in the groove or bead oit' the centrally-extended portions of the clamps. l

2. A broom-making machine comprising movable cr,oss-heads, a clamp-form carried by one of. said cross-heads, a clamp-form 'cooperating therewith, said clamp-forms adapted to hold broom-clamps, an anvil and staple-holders carried thereby to receive a staple, and means carried by one cross-head to bend the staple into a ring around a portion of the clamps during the broom-clamping operation.

3. A broom-clamping machine comprising two movable cross-heads, a clamp-form carried by one of said cross-heads, a clampform coperating therewith, said forms adapted to receive clamps, fingers pivoted to and carried by the frame, clamp endstraighteners pivoted to and carried by one cross-head, bell-cranks carried by the iingers, and means carried by the other crossretenes headV in position to engage the bell-cranks to cause the latter to exert lateral pressure upon the clamp end straighteners to force the clamp ends into position to hook or interlock with each other.

4. r broom-clamping machine comprising two movable cross-heads, a clamp-form carried by one of said cross-heads, a clampform coperating therewith, said forms adapted to receive clamps, fingers pivoted to and carried by the frame, clamp end straighteners pivoted to and carried by one cross-head, springs attached to the straighteners and to the cross-head for swinging the straighteners in one direction, adjustable screws connected with the straighteners and bearing against the head, bell-cranks carried by the fingers, and adjustable means carried by the other cross-head in position to engage the bell-cranks to cause the latter to exert lateral pressure upon the clamp end straighteners to force the clamp ends into position to hook or interlock with each other.

5. A broom-clamping machine comprising two movable cross-heads, a clamp-form carried by one of said cross-heads, a clampform ccperating therewith, said clamp forms adapted to receive clamps, fingers pivotally mounted on and carried by the frame, clamp end straighteners pivotally carried by and mounted on one cross -head, bellcrank levers pivotally mounted in the fingers, plungers carried by the other crosshead, said plungers having rollers in position to engage and swing the fingers into position, and rollers carried by the first mentioned cross-head for engaging and supporting said fingers.

6. A broom-clamping machine comprising two movable cross-heads, a clamp-form carried by one of said cross-heads, a clampform coperating therewith, said clamp forms adapted to receive clamps, lingers pivotally mounted on and carried by the frame, clamp end straighteners pivotally carried by and mounted on one cross-head, bell-crank levers pivotally mounted in the fingers, plungers carried by one cross-head, said plungers having rollers in position to engage and swing the fingers into position, rollers carried by the other cross-head for engaging and supporting said fingers, and means on one cross-head for engaging the bell-crank levers to cause them to exert lateral pressure upon the clamp end straighteners.

7. A broom-clamping machine comprising two movable cross-heads, a clamp-form carried by one of said cross-heads, a clampform coperating therewith, clamps adapted to be carried by the forms, lingers pivotally mounted on and carried bv the frame, clamp end straighteners pivotally carried by and mounted on one cross-head, bell-crank levers pivotally mounted in the fingers, plungers carried by one cross-head, said plungers having rollers in position to engage and swing the lingers into position, rollers carried by the other cross-head for engaging and supporting said fingers, means on one crosshead for engaging the bell-crank levers to cause them to exert lateral pressure upon the clamp end straighteners, an anvil and s} )ring-staple holders to receive and hold the staple, and a plunger' movable with respect to the first mentioned cross-head for engaging the ends of the staple and bending the staple into a ring around a portion or the clamp.

S. A broom-clamping machine comprising two movable cross-heads, a clamp-form carried by one of said cross-heads, a clampiorm cooperating therewith, said clamp :t'orms adapted to receive clamps, fingers pivotally mounted on and carried by the frame, clamp end straighteners pivotally carried by and mounted on one cross-head, bell-crank levers pivotally mounted in the fingers, plungers carried by the other crosshead, said plungers having rollers in position to engage and swing the fingers into position, rollers carried by the first mentioned crosshead for engaging and supporting said fingers, means on one cross-head for engaging the bell-crank levers to cause them to exert lateral pressure upon the clamp end straighteners, an anvil and spring-staple holders to receive and hold the staple, a plunger movable with respect to the first mentioned cross-head for engaging the ends of the staple and bending the staple into a ring around a portion of the clamp, a plate for holding the plunger in place, and screws in position to engage and adjust said plate and resist heavy strain thereupon without slipping.

9. A broom-clamping machine comprising a main frame, movable cross-heads. a pressure-head adjustably connected to the frame, a clamp-form attached thereto, a stationary clamp-form, fingers pivotally and adjustably mounted on the frame, clamp end straighteners pivotally connected with one cross-head, means carried by the fingers for exerting pressure upon the straighteners, adjustable means carried by one of' the cross-heads for engaging said means carried by the fingers, plungers connected with one cross-head and carrying rollers, and the other cross-head having rollers, said rollers adapted to engage and hold the fingers in position while the means carried bv the fingers are forced against the straighteners.

l0. A broom-clamping machine comprising a frame, movable cross-heads, a pressurehead adjustably connected to the main frame, a wedge-block resting on a shelf on the main frame upon which another pressure-head rests, means for holding said wedge-block in place, ngers pivotally mounted on and carried by the frame, bellcrank levers pivotally connected with the lingers, plungers carried by the crosshcad and having rollers in position to engage and move the lingers laterally, and adjustable means carried by the plungers in position to engage the bell-crank levers to swing them upon their pivots.

l1. A broom-clamping machine comprising a frame, movable cross-heads, a clampvform carried by one cross-head, a pressurehead adjustably connected to the main frame, a clamp-form attached to the pressure-head, a projection on the pressure-head, a staple holder secured to the projection, an anvil adjustably attached to the pressurehead and adjacent clamp-form, and an adj ustable rod torniin g a support for the outer end of the pressurehead projection.

12. A. broom-clamping machine comprising a frame, two movable cross-heads, a clamp form carried by one crosshead, a pressure head adjustably connected to the main frame, a clamp-form attached to the pressure-head, means for adjustably supporting the latter, finger-blocks adjustably supported on either side of the pressurehead, the pressure-head provided with Tn slots, bolts extending through finger-blocks with their heads in the T-slots of the pressure-head, the linger-blocks having round extensions, fingers pivotally mounted on these extensions, bell-crank levers pivotally mounted in the fingers, plungers carried b v the lower movable cross-head and having rollers in position to engage and raise the lingers and adjustable means for engaging the bell-crank levers to cause the latter to move inwardly and exert pressure.

In testimony whereof l aiix my signature, in the presence of two witnesses.

NORMAN H. Birnen.

Witnesses: y

J. lvllEIFnLnT, WVM. Winer..

Copies of this patent may be obtained for five cents each, by addressing' the Commissioner of Patents,k Washington, D. C. 

